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Published on: 25/10/2025
Download CBSE Class 12th Standard CBSE Biology question papers, sample papers, important questions, and previous year solved papers in PDF format. Get free study materials, NCERT solutions, and exam preparation resources for Class 12th Standard CBSE Biology
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Take MCQ Biology Test
1.
2.
The sequence of human evolution is correctly depicted in
Dryopithecus → Homo erectus → Homo habilis → Cro-Magnon man
Australopithecus → Neanderthal man → Homoerectus → Modern man
Homo sapiens → Dryopithecus → Homo erectus → Autralopithecus
Australopithecus → Homo erectus → Neanderthal man → Homo sapiens
3.
Match the Column I with Column II and select the correct option from the codes given below.
| Column I (Time periods in geological tinse scale) | Column II (Related to) |
| A. Mesozoic | 1. First amphibians |
| B. Devonian | 2. Proliferation of reptiles |
| C. Palarocene | 3. 160 million years |
| D. Permian | 4. Radiation of primitive mammals |
| A | B | C | D |
| 1 | 4 | 3 | 2 |
| A | B | C | D |
| 3 | 1 | 4 | 2 |
| A | B | C | D |
| 4 | 1 | 2 | 3 |
| A | B | C | D |
| 2 | 1 | 4 | 3 |
4.
Evolutionary convergence is characterised by
development of characteristics by random mutations.
development of similar characteristics in different groups of organisms of different ancestry.
development of dissimilar characteristics in closely related groups of organisms.
development of similar characteristics in related groups of organisms.
5.
According to oparin,which one of the following was not in the primitive atmosphere of the earth?
oxygen
Hydrogen
Water Vapour
Methane
6.
Darwin's finches provide an excellent evidence in favour of evolution. The evidences come from the field of
embryology
palaeontology
biogeography
anatomy
7.
Recapitulation theory was called the law of Biogenesis by
Haeckel
Darwin
Lamarck
Hugo de Vries
8.
Which of these pairs is vestigial?
Coccyx and pinna muscles
Coccyx and premolar
Facial hair in ladies
Coccyx and intercostal muscles
9.
Sickle-cell anaemia, the best example of natural selection, is due to gene modification related to amino acid of
First \(\quad \beta \) chain
Second \(\quad \beta \) chain
second \(\alpha \) chain
First \(\alpha \) chain
10.
Amphibians were dominant during
Carboniferous
silurian
ordovician
cambrian
jurassic
11.
One of the oldest, best preserved and most complete hominid fossil commonly known as 'Lucy' belongs to the genus
Oreopithecus
Dryopithecus
Pithecanthropus
Australopithecus
12.
Hardy-Weinberg equilibrium is known to be affected by
evolution
limiting factors
saltation
natural selection
13.
The golden age of reptiles is
Palaeozoic
Mesozoic
Cenozoic
Proterozoic
14.
Which one of the following scientist's name is correctly matched with the theory put forth by him?
De Vries-Natural selection
Mendel-Theory of Pangenesis
Weismann-Theory of continuity of germplasm
Pasteur-Inheritance of acquired characters
15.
Development of patagia in animals is....... adaptation
Volant
Arboreal
Aquatic
Cave
16.
In 1953 S.L. Miller created primitive earth conditions in the laboratory and gave experimental evidence for origin of first form of life from pre-existing non-living organic molecules. The primitive earth conditions created include:
low temperature, volcanic storms, atmosphere rich in oxygen
low temperature, volcanic storms, reducing atmosphere
high temperature, volcanic storms, non-reducing atmosphere
high temperature, volvanic storms, reducing atmosphere containing \({ CH }_{ 4 }\) ,\({ NH }_{ 3 }\) etc.,
17.
Match the scientists listed under column 'A' with ideas listed in column 'B'.
| Column 1 | Column 2 |
| (i) Darwin | (M) abiogenesis |
| (ii) Oparin | (N) use and disuse of organs |
| (iii) Lamarck | (O) continental drift theory |
| (iv) Wagner | (P) evolution by natural selection |
(i)-(M) ; (ii)-(P) ; (iii)-(N) ; (iv)-(O)
(i)-(P) ; (ii)-(M) ; (iii)-(N) ; (iv)-(O)
(i)-(N) ; (ii)-(P) ; (iii)-(O) ; (iv)-(M)
(i)-(P) ; (ii)-(O) ; (iii)-(N) ; (iv)-(M)
18.
Select the correct statements from the following?
Fitness is the end result of the ability to adapt and gets selected by nature
All mammals except whales and camels have seven cervical vertebrae
Mutations are random and directional
Darwinian variations are small and directionless
19.
Which of the following is not a concept of Lamarck?
environmental pressure causes variation
rate and survival of organism is different due to variation
inheritance of acquired character
if an organ is used constantly it will continuously increase in size
20.
A bacterial cultural is treated with streptomycin and a cast is made.A few columns are able to survive due to
selection
Adaptation
Induced mutation
Mimicry
21.
The connecting link between Annelida and Mollusca is
Neopalina
Glochidium larva
Nautilus
Velliger larva
22.
The finches of Galapagos islands provide an evidence in favour of
evolution due to mutation
retrogressive evolution
biogeographical evolution
special creation
23.
In the developmental history of mammalian heart, it is observed that it passes through a 2-chambered fish-like heart, 3-chanbered frog-like heart and finally 4-chambered stag. To which hypothesis can the above statement be approximated?
Biogenetic law
Hardy-Weinberg law
Lamarck's principle
Mendelian principles
24.
The unit of natural selection is
an individual
a species
a genus
a population
25.
The diversity in the type of beak of finches adapted to different feeding habits on the Galapagos islands, as observed by Darwin, provides evidence for
Origin of species by natural selection
Intraspecific variation
Intraspecific competition
Interspecific competition
26.
According to the theory of mutation by Hugo de Vries
only small mutation takes part in variation
only large mutation takes part in variation
both small and large mutation cause variation in species
none of the above
27.
An important evidence in favour of organic evolution is the occurrence of
homologous and analogous organs
homologous and vestigial organs
analogous and vestigial organs
homologous organs only
28.
Which one of the following phenomenon supportsDarwin's concept of natural selection in organic evolution?
development of transgenic animals
production of 'dolly',the sheep by cloning
prevalence of pesticide resistant insects
development of organs from 'stem cells' for orgon transplanation
29.
De Vries gave his mutation theory on organic evolution while working on
pisum sativum
Drosophila melanogaster
Oenothera lamarckiana
Althea rosea
30.
Which one of the following experiments suggest that simplest living organism could not having originated spontaneously from non-living matter?
larve could appear in decaying organic matter
microbes did not appear in stored meat
microbes appeared from unsterilized organic matter
meat was not spoiled, when heated and kept sealed in a vessel
1.
(d)
2.
(a)
Dryopithecus → Homo erectus → Homo habilis → Cro-Magnon man
3.
(b)
| A | B | C | D |
| 3 | 1 | 4 | 2 |
4.
(b)
development of similar characteristics in different groups of organisms of different ancestry.
5.
(a)
oxygen
6.
(c)
biogeography
7.
(a)
Haeckel
8.
(a)
Coccyx and pinna muscles
9.
(b)
Second \(\quad \beta \) chain
10.
(a)
Carboniferous
11.
(d)
Australopithecus
12.
(d)
natural selection
13.
(b)
Mesozoic
14.
(c)
Weismann-Theory of continuity of germplasm
15.
(a)
Volant
16.
(d)
high temperature, volvanic storms, reducing atmosphere containing \({ CH }_{ 4 }\) ,\({ NH }_{ 3 }\) etc.,
17.
(b)
(i)-(P) ; (ii)-(M) ; (iii)-(N) ; (iv)-(O)
18.
(a)
Fitness is the end result of the ability to adapt and gets selected by nature
19.
(b)
rate and survival of organism is different due to variation
20.
(b)
Adaptation
21.
(a)
Neopalina
22.
(c)
biogeographical evolution
23.
(a)
Biogenetic law
24.
(a)
an individual
25.
(a)
Origin of species by natural selection
26.
(c)
both small and large mutation cause variation in species
27.
(b)
homologous and vestigial organs
28.
(c)
prevalence of pesticide resistant insects
29.
(c)
Oenothera lamarckiana
30.
(d)
meat was not spoiled, when heated and kept sealed in a vessel
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